diff options
Diffstat (limited to 'baseboard/kukui/battery_max17055.c')
| -rw-r--r-- | baseboard/kukui/battery_max17055.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/baseboard/kukui/battery_max17055.c b/baseboard/kukui/battery_max17055.c index 7a486e083f..29f28a17ce 100644 --- a/baseboard/kukui/battery_max17055.c +++ b/baseboard/kukui/battery_max17055.c @@ -120,6 +120,11 @@ enum battery_disconnect_state battery_get_disconnect_state(void) int charger_profile_override(struct charge_state_data *curr) { +#ifdef BOARD_KAKADU + static timestamp_t deadline_48; + static timestamp_t deadline_2; + int cycle_count = 0, rv, val; +#endif /* battery temp in 0.1 deg C */ int bat_temp_c = curr->batt.temperature - 2731; @@ -201,6 +206,53 @@ int charger_profile_override(struct charge_state_data *curr) break; } +#ifdef BOARD_KAKADU + /* Check cycle count to decrease charging voltage. */ + rv = battery_cycle_count(&val); + if (!rv) + cycle_count = val; + if (cycle_count > 300) + curr->requested_voltage = 4320; + else if (cycle_count > 600) + curr->requested_voltage = 4300; + else if (cycle_count > 1000) + curr->requested_voltage = 4250; + /* Should not keep charging voltage > 4250mV for 48hrs. */ + if ((curr->state == ST_DISCHARGE) || + curr->chg.voltage < 4250) { + deadline_48.val = 0; + /* Starting count 48hours */ + } else if (curr->state == ST_CHARGE || + curr->state == ST_PRECHARGE) { + if (deadline_48.val == 0) + deadline_48.val = get_time().val + + CHARGER_LIMIT_TIMEOUT_HOURS * HOUR; + /* If charging voltage keep > 4250 for 48hrs, + set charging voltage = 4250 */ + else if (timestamp_expired(deadline_48, NULL)) + curr->requested_voltage = 4250; + } + /* Should not keeep battery voltage > 4100mV and + battery temperature > 45C for two hour */ + if (curr->state == ST_DISCHARGE || + curr->batt.voltage < 4100 || + bat_temp_c < 450) { + deadline_2.val = 0; + } else if (curr->state == ST_CHARGE || + curr->state == ST_PRECHARGE) { + if (deadline_2.val == 0) + deadline_2.val = get_time().val + + CHARGER_LIMIT_TIMEOUT_HOURS_TEMP * HOUR; + else if (timestamp_expired(deadline_2, NULL)) { + /* Set discharge and charging voltage = 4100mV */ + if (curr->batt.voltage >= 4100) { + curr->requested_current = 0; + curr->requested_voltage = 4100; + } + } + } +#endif + #ifdef VARIANT_KUKUI_CHARGER_MT6370 mt6370_charger_profile_override(curr); #endif /* CONFIG_CHARGER_MT6370 */ |